Answers for industry.The permanent advancement and continuous innovationof SIRIUS modular system optimally prepare our customersfor current and future requirements and provide them withefficient solutions for switching, protection and startingof motors up to 250kW. The new SIRIUS CT based thermaloverload relay (CT OLR) is designed to provide a reliable andeconomical solution for motor protection from 55A to 500A.Features: Relay width matching with Sirius contactors Straight through transformer variant in Size S6 Overlapping current range Reliable protection in case of overload, phase unbalanceand phase failure